Near-infrared absorbing metal functionalized diketopyrrolopyrroles

Publication date: 1 December 2017 Source:Journal of Organometallic Chemistry, Volume 852 Author(s): Yuvraj Patil, Jivan Shinde, Rajneesh Misra A symmetrical cobalt-dithiolene functionalized diketopyrrolopyrrole (DPP) Co-DPP-Co was designed and synthesized. Its photophysical, thermal, electrochemical and computational studies were compared with symmetrical ferrocenyl Fc-DPP-Fc. The electronic absorption spectrum of Co-DPP-Co exhibited absorption in Vis-NIR region with shoulder band in longer wavelength region. The thermogravimetric analysis shows good thermal stability of Co-DPP-Co. The density functional theory (DFT) investigation exhibited the cis geometry of cobalt-dithiolene ring with respect to DPP in Co-DPP-Co whereas trans geometry was observed for ferrocenyl unit in Fc-DPP-Fc. Graphical abstract

Source: Journal of Organometallic Chemistry - November 23, 2017 Category: Chemistry Source Type: research